.xt-container{
    width: 100vw;
    display: flex;
    .left{
        width: 200px;
        min-height: calc(100vh - 50px);
        background-color: #f5f5f5;
    }
    .right{
        flex-grow: 1;
        min-height: calc(100vh - 50px);
    }
}